INFORMATICSPRACTICES

A Text Book on

Shiksha Kendra, 2, Community Centre, Preet Vihar, Delhi-110 092 India

CLASS XII

A text book on Informatics Practices, Class XII.

PRICE : Rs.

FIRST EDITION 2011 © CBSE, India

COPIES:

PUBLISHED BY : The Secretary, Central Board of Secondary Education, Shiksha Kendra, 2, Community Centre, Preet Vihar, Delhi-110092

DESIGN, LAYOUT : Multi Graphics, 5745/81, Reghar Pura, Karol Bagh,

New Delhi-110005, Phone : 25783846

PRINTED BY :

"This book or part thereof may not be reproduced byany person or agency in any manner."

Foreword Foreword Invention of Machines led to take up heavier, hazardous and heavy duty tasks beyond

limits of human capacity. With the advent of computer, imagination got expanded

networking worldwide. ICT (Information and Communication Technology) deals with

information to compute / process and to communicate to other users. The ICT policy in

School education aims at augmenting creativity and promoting global competitiveness.

With this backdrop care is to be taken to impart ICT instructions so as to promote critical

thinking, collaborative learning and multi discipline problem-solving skills.

The curriculum of "Informatics Practices" has been revised accordingly with focus on

rapid application development using IDE, data processing and domain-specific

applications, e.g. e-Governance, e-Business and e-Learning. Use of open source software

is encouraged.

In its first attempt, the text book of Informatics Practices for Class XI has been published.

The text book of Informatics Practices for Class XII is ready. I am happy to release the

same. In the Syllabus of IP for Class XII a unit on Networking and Open Standards has

been introduced.. RDBMS (Relational Database Management System)is dealt with

using MYSQL in place of SQL & PL/SQL using oracle. A new unit on IT Applications has

been added with three focused domains to enhance understanding the above tools and

techniques to solve real life problems by designing both front end and back end with

proper data connectivity.

The text book includes puzzles in the beginning of the chapters to motivate students for

collective and joyful learning of the subject. Cue to future trends may ignite curiosity.

My thanks are due to the text book development team aptly steered by Prof.Omvikas.

Appreciation is also due to Mrs. Chitralekha Gurumurthy, Director (Acad.) and Dr.

(Smt) Srijata Das, Education Officer, for Planning, coordinating and executing this

initiative resulting into this publication.

I hope that all students and teachers will benefit from this publication. Their feedback

will be highly appreciated for further improvement.

VINEET JOSHI

CHAIRMAN

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THE CONSTITUTION OF INDIAPREAMBLE

1WE, THE PEOPLE OF INDIA, having solemnly resolved to constitute India into a SOVEREIGN SOCIALIST SECULAR DEMOCRATIC REPUBLIC and to secure to all its citizens :

JUSTICE, social, economic and political;

LIBERTY of thought, expression, belief, faith and worship;

EQUALITY of status and of opportunity; and to promote among them all

2FRATERNITY assuring the dignity of the individual and the [unity and integrity of the Nation];

IN OUR CONSTITUENT ASSEMBLY this twenty-sixth day of November, 1949, do HEREBY TO

OURSELVES THIS CONSTITUTION.

THE CONSTITUTION OF INDIA

Chapter IV A

Fundamental Duties

ARTICLE 51A

Fundamental Duties - It shall be the duty of every citizen of India-

(a) to abide by the Constitution and respect its ideals and institutions, the National Flag and the National Anthem;

(b) to cherish and follow the noble ideals which inspired our national struggle for freedom;

(c) to uphold and protect the sovereignty, unity and integrity of India;

(d) to defend the country and render national service when called upon to do so;

(e) To promote harmony and the spirit of common brotherhood amongst all the people of India transcending religious, linguistic and regional or sectional diversities; to renounce practices derogatory to the dignity of women;

(f) to value and preserve the rich heritage of our composite culture;

(g) to protect and improve the natural environment including forests, lakes, rivers, wild life and to have compassion for living creatures;

(h) to develop the scientific temper, humanism and the spirit of inquiry and reform;

(i) to safeguard public property and to abjure violence;

(j) to strive towards excellence in all spheres of individual and collective activity so that the nation constantly rises to higher levels of endeavour and achievement.

1. Subs, by the Constitution (Forty-Second Amendment) Act. 1976, sec. 2, for "Sovereign Democratic Republic (w.e.f. 3.1.1977)

2. Subs, by the Constitution (Forty-Second Amendment) Act. 1976, sec. 2, for "unity of the Nation (w.e.f. 3.1.1977)

Shri Vineet Joshi, Chairman, CBSE

Smt. Chitralekha Gurumurthy, Director (Academics)

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Mukesh Kumar, DPS, RK Puram, Delhi

Mrs. Nancy Sehgal, Mata Jai Kaur Public School, Ashok Vihar, Delhi

Mrs. Gurpreet Kaur, GD Goenka School, Vasant Kunj, Delhi

Yogesh Kumar, Mira Model School, Janak Puri, New Delhi

Mrs. Ritu Arora, DPS, Gurgaon

Mrs. Divya Jain, Apeejay, Noida

DEVELOPMENT TEAM

CONVENOR & EDITOR

CBSE ADVISORS

Prof. Om Vikas, Former Director, IIITM, Gwalior•

MEMBER COORDINATOR

Dr. Srijata Das, Education Officer, CBSE, Delhi•

ACKNOWLEDGEMENTS ACKNOWLEDGEMENTS

COMPUTER NETWORKING

INFORMATICS PRACTICES

GUI PROGRAMMING -

A REVIEW

ADVANCED PROGAMMING

CONCEPTS

1

DATA CONNECTIVITY

150

39

56

103

122

191

244

270

315

362

334

OPEN SOURCE CONCEPTS

BASICS OF OBJECT

ORIENTED PROGRAMMING

CO

NT

EN

TS

1

2

3

4

5

6

WEB APPLICATIONS

MYSQL REVISION TOUR

7

8MORE ON DATABASES

AND SQL9

10 ADVANCED RDBMS

CONCEPTS

11 IT APPLICATIONS

APPENDIX